题目内容：

    There it was. A test of will power. I’m on a special diet with foods carefully selected for balanced nutrition and caloric value. A piece of cheese cake is not an option. So here was my dilemma: Should I not eat the cheese cake, feel dissatisfied and take out my frustration on the annoyingly skinny physical instructor at the gym? Or should I eat the cheese cake and work off the calories?

The latter seemed like a win-win solution. Not only would I get to enjoy the cheese cake, but I’d get an exercise session. And then it hit me: a delicate plan to use my cheese cake as an exercise incentive. I plated a thin slice of cheese cake and carefully walked it up the stairs and set it on my bedside table with a small fork. I put on my exercise outfit and went downstairs.

The appeal of the cheese cake got stronger so I launched my plan: I would run up and down the stairs and then back up again. My reward: one small bite of cheese cake. If I wanted another, I’d have to run down and up and down and up again. Off I went. Ah, creamy vanilla goodness without guilt. I wanted another bite so I quickly sprinted through another stair climbing run.

Admittedly, it is harder to enjoy the creaminess of the cheese cake when my tongue was dry from over-breathing. I placed a bottle of water next to the cake.

Down and up and down and up again. When I struggled over to the cheese cake, my hand bypassed the plate and went for the water instead. I didn’t want the cake any more. I wanted all this sweat and effort to do more than cancel the calories from cheese cake. I was exhausted and sure the cheese cake tasted fine but just not good enough to make me run up and down the stairs one more time.

My plan worked. Now, any time I felt tempted to indulge in a former favorite, I remembered my stairs trick.

1.What can we infer about the author from paragraph 1?

A.She has weak will power.

B.She is bad-tempered and very critical.

C.She needs assistance with making the choice.

D.She hesitated over eating something against her diet.

2.What does the underlined word “incentive” in paragraph 2 mean?

A.Motivation. B.Excuse.

C.Substitute. D.Companion.

3.What do we learn about the author’s plan?

A.It involved much energy consumption.

B.It rid the cake of the pleasant taste.

C.It changed the author’s preference for food.

D.It was exhausting and caused suffering.

4.What may be the best title for the passage?

A.A costly dilemma.

B.An evil cheese cake.

C.A trick that worked.

D.A sweating experience.